I found this interesting list of things that have been engraved inside wedding bands, and I must say, some of them are downright tacky:

Rump shaker
You're mine sucker! (tacky even if it included the required comma)
Come on baby, knock me a kiss
The toys are LEGALLY mine
We are ... Penn State (they should have gone with "Nittany Lions")
Pookie bear & Delta gerbil
Not for pawning
Wow ... we got married, man!
Do or do not, there is no try (Yoda gets hitched)
I love you ... more than ice cream!
Save and redeem for fun prizes
Forever friends, lovers and bowling partners (I bet my mom wishes she'd thought of putting that in her wedding band)
I love you like a fat kid loves cake
I love you more than Oreos
Do I have to wear pants?
Thanks for waiting, Dork!

Some are trite:

Today I married my friend
United as one
Lets grow old together (yawn -- and where's the apostrophe?)
You fill up my senses (what is this, the 1970s?)
More today than yesterday
My heart is your heart always

However, I like one of them so much that I'd like it on my own ring. Or my tombstone -- sharing with Kip, of course:

They dance under one sky.